CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved

Science
Download PDF

Previous Year Question Papers for Class 10 Science

Explore authentic exam materials through the CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved. Tailored for Class 10 learners, utilizing these Science previous year papers ensures thorough preparation and strengthens time management skills before final CBSE evaluations.

Practice Class 10 Science Exam Papers

Navigate directly to the solved Science question papers using the digital viewer below. Each practice set includes detailed solutions, allowing students to instantly cross-check their work and identify areas requiring further revision.

Section – A
1. How are covalent bonds formed ?
 
2. Define electropositivity.
 
The atomic radii of first group elements are given below :
 
Group-I element     Atomic Radii (pm)
        Na                           86
         K                           231
        Rb                          244
        Cs                          282
 
State the reason behind the observed trend in the above elements. 
 
3. Answer question numbers 3(a) to 3(d) on the basis of your understanding of the following paragraph and the related studies concepts.
 
The Tehri dam is the highest dam in India and one of the highest in the World. The Tehri dam withholds a reservoir of capacity 4.0 km3 and surface area 52 km2. It is used for irrigation, municipal water supply and the generation of 1000 MW of hydro electricity.
 
The Tehri Dam has been the object of protests. Environment activist Shri Sunder Lal Bahuguna led the “Anti Tehri Dam Movement” from 1980s to 2014. The protest was against the displacement of town inhabitants and environmental consequences of the weak ecosystem. The relocation of
more than 1,00,000 people from the area has led to protracted legal battles over resettlement rights and ultimately resulted in the delayed completion of the project.
 
(a) How is hydropower harnessed ? 
 
(b) Define 1 MW. 
 
(c) Mention two disadvantages of constructing Tehri Dam. 
 
(d) What happens when water from great heights is made to fall on blades of turbine ?
 
Please click on below link to download CBSE Class 10 Science Boards 2020 Question Paper Solved Set C.

Free study material for Science

Past Exam Papers & Solutions for Class 10 Science

Class 10 Science Past Exam Papers & Resources

Review authentic examination papers for Class 10 Science. Working through the CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved allows learners to decode recurring question trends and familiarize themselves with official CBSE evaluation standards.

Importance of Solving CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved

Practicing past question sets under timed home conditions helps refine pacing and time management skills, ensuring you complete your Science examination comfortably within the official duration.

Complete Your Exam Preparation

Download digital copies of these papers for convenient offline revision anywhere. Cross-check your completed steps against our expert solution guides to ensure complete accuracy.

FAQs

Where can I download the official PDF for CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved?

The CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved is available for download on StudiesToday.com. It includes complete set with all sections so that Class 10 students can practice with the exact same paper that came in the CBSE exams.

Are the solutions for CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved based on the official CBSE marking scheme?

Yes, the solutions for CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved are prepared by subject matter experts as per official marking scheme. Class 10 students will understand the structure of answers and 'step-marks' methodology Science.

How does solving CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved help in preparing for the 2026 exams?

Solving previous year papers like CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved is important to understand repeat themes and question difficulty levels of Science. It helps Class 10 students to test their time management skills too.

Can I access CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved in different languages?

Yes, where applicable, CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved is available in both English and Hindi mediums. All students from Class 10 can access Science study material in their preferred language.

Is there a charge to download the CBSE Class 10 Science solved papers?

No, all previous year question papers on StudiesToday, including CBSE Class 10 Science Boards 2020 Question Paper Set 03 Solved, are provided free of charge in mobile-friendly PDF.